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# SPDX-License-Identifier: CC0-1.0

"""
Haketilo unit tests - modifying requests using webRequest API
"""

# This file is part of Haketilo
#
# Copyright (C) 2021, Wojtek Kosior <koszko@koszko.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the CC0 1.0 Universal License as published by
# the Creative Commons Corporation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# CC0 1.0 Universal License for more details.

import re
from hashlib import sha256
import pytest

from ..script_loader import load_script
from .utils import are_scripts_allowed

def webrequest_js():
    return (load_script('background/webrequest.js',
                        '#IMPORT common/patterns_query_tree.js AS pqt') +
            ''';
            // Mock pattern tree.
            tree = pqt.make();

            // Rule to block scripts.
            pqt.register(tree, "https://site.with.scripts.block.ed/***",
                         "~allow", 0);

            // Rule to allow scripts, but overridden by payload assignment.
            pqt.register(tree, "https://site.with.paylo.ad/***", "~allow", 1);
            pqt.register(tree, "https://site.with.paylo.ad/***",
                         "somemapping", {identifier: "someresource"});

            // Mock IndexedDB.
            haketilodb.track.settings =
                () => [{}, [{name: "default_allow", value: true}]];

            // Mock stream_filter.
            stream_filter.apply = (details, headers, policy) => headers;

            // Mock secret and start webrequest operations.
            start("somesecret");
            ''')

@pytest.mark.ext_data({'background_script': webrequest_js})
@pytest.mark.usefixtures('webextension')
def test_on_headers_received(driver, execute_in_page):
    for attempt in range(10):
        driver.get('https://site.with.scripts.block.ed/')

        if not are_scripts_allowed(driver):
            break
        assert attempt != 9

    driver.get('https://site.with.scripts.allow.ed/')
    assert are_scripts_allowed(driver)

    driver.get('https://site.with.paylo.ad/')
    assert not are_scripts_allowed(driver)
    source = 'somemapping:someresource:https://site.with.paylo.ad/index.html:somesecret'
    assert are_scripts_allowed(driver, sha256(source.encode()).digest().hex())